To properly water grass seed, follow these guidelines:
- Frequency: Water new grass seed 2 to 4 times daily during the germination period, typically for 5 to 10 minutes per session. This keeps the top 1 to 1.5 inches of soil consistently moist, which is critical for seed germination
- Duration: Each watering session should last about 5 to 10 minutes, enough to moisten the top couple of inches without overwatering, which can wash away seeds or cause rot
- Timing: Water in the early morning and evening when temperatures are cooler to reduce evaporation and allow water to soak in effectively
- How long to continue: Maintain this frequent watering schedule until most seeds have sprouted, usually about 10 to 14 days but it depends on grass type (some take up to 28 days)
. For example, ryegrass germinates in about 5–10 days, while Kentucky bluegrass can take 14–30 days
- After germination: Gradually reduce watering frequency, shifting to once daily for about a week, then to deeper, less frequent watering every 2–3 days to encourage deep root growth
- Adjustments: Modify watering based on soil type, weather conditions, and rainfall. Avoid watering after heavy rain to prevent overwatering
In summary, water new grass seed lightly but frequently (2–4 times daily for 5–10 minutes) until germination, then gradually reduce frequency while increasing water depth to promote healthy root development
